Invesco Unit Trusts Taxable Income Series 437: 497J filed Jun 28, 2019

Name: Invesco Unit Trusts Taxable Income Series 437 497J (0001528621-19-001574)
Creator: Invesco Unit Trusts Taxable Income Series 437
Published: 2019-06-28

Form type: 497J
Filing date: Jun 28, 2019
Accession number: 0001528621-19-001574
Filer: Invesco Unit Trusts Taxable Income Series 437 (CIK 1547615)